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Leona [35]
3 years ago
8

Describe how organisms acquire energy directly or indirectly from sunlight.

Biology
1 answer:
cluponka [151]3 years ago
5 0
Photosynthetic organisms use sunlight to provide the energy necessary to combine carbon dioxide and water to form organic molecules and ATP. Those same photosynthetic organism also use cellular respiration to breakdown those organic molecules whenever there is an energy demand greater than what can be provided by photosynthesis or in the absence of light.
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The growth rate refers to the change in _______ from one period to another.
Katyanochek1 [597]
Number of organisms per unit time.
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4 years ago
In comparing the functions, inputs, and outputs of the sub-processes of respiration, which statement provides the MOST accurate
Alexandra [31]

Explanation:

<u>The electron transport chain produces more ATP than glycolysis or the Krebs cycle.  </u> -34 ATP vs 2 ATP respectively.

overall: C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≈38 ATP

The electron transport chain, ETC functions in the inner mitochondrial membrane, it produces up to 34 ATP. Here, electrons combine with H+ split from 10 NADH, 4 FADH2, renewing the number of electron acceptors and 3 oxygen.

Further Explanation:

In all eukaryotic cells mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced. Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’ or Citric acid cycle via the oxidization of pyruvate( through the process of glycolysis in the cytoplasm).

Oxidative phosphorylation describes a process in which the NADH and FADH2 made in previous steps of respiration process give up electrons in the electron transport chain these are converted it to their previous forms, NADH+ and FAD. Electrons continue to move down the chain the energy they release is used in pumping protons out of the matrix of the mitochondria.

This forms a gradient where there is a differential in the number of protons on either side of the membrane the protons flow or re-enter the matrix through the enzyme ATP synthase, which makes the energy storage molecules of ATP from the reduction of ADP. At the end of the electron transport, three molecules of oxygen accept electrons and protons to form molecules of water...

  • Glycolysis: occurs in the cytoplasm 2 molecules of ATP are used to cleave glucose into 2 pyruvates, 4 ATP and 2 electron carrying NADH molecules. (2 ATP are utilized for a net ATP of 2)
  • The Citric acid or Kreb's cycle: in the mitochondrial matrix- 6 molecules of CO2 are produced by combining oxygen and the carbon within pyruvate, 2 ATP oxygen molecules, 8 NADH and 2 FADH2.
  • The electron transport chain, ETC: in the inner mitochondrial membrane, 34 ATP, electrons combine with H+ split from 10 NADH, 4 FADH2, renewing the number of electron acceptors and 3 oxygen; this forms 6 H2O, 10 NAD+, 4 FAD.

Learn more about cellular life at brainly.com/question/11259903

Learn more about cellular respiration at brainly.com/question/11203046

#LearnWithBrainly

8 0
3 years ago
What animal has long eyelashes and hair lined ears that block blowing sand can close its nostrils to keep sand out?
Sunny_sXe [5.5K]
The camel is the animal that has these characteristics.
5 0
3 years ago
What is menopause, and why does it occur?
katovenus [111]

Answer:

A woman is born with all of her eggs, which are stored in her ovaries. The ovaries also make the hormones estrogen and progesterone, which control her period (menstruation) and the release of eggs (ovulation). Menopause happens when the ovaries no longer release an egg every month and menstruation stops.

5 0
3 years ago
Read 2 more answers
What is the relationship between the carrying capacity and productivity of an an ecosystem
dsp73

Explanation:

Carrying capacity refers to the maximum number of individuals of a certain species an environment can maintain in the long-term.

Factors that will determine carrying capacity include amount of water available in the environment, geographic size of environment, energy sources available, and so forth.

The image below shows the general idea of carrying capacity and population size:

The reality is often not so simple, as populations can overshoot their carrying capacity. When this happens, it takes some time for the population numbers to decrease. Thus, graphs more realistically resemble the one below:

Over time and with no disturbances, the population will generally max out at the carrying capacity. It is also important to remember that environments may not be unchanging, especially in certain time scales. For example, an increase in rainfall one year may mean that there is far more standing water available in the environment. Thus, mosquito populations will temporarily increase as the carrying capacity for them allows for higher numbers.

8 0
3 years ago
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